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Fix T39630: Mouse Wheel doesn't detect Multi Window Focus

This commit is contained in:
Sergey Sharybin 2014-08-18 20:49:35 +06:00
parent eb10cda135
commit adb08def61
Notes: blender-bot 2023-02-14 10:50:46 +01:00 
Referenced by issue #39630, Mouse Wheel doesn't detect Multi Window Focus.
1 changed files with 19 additions and 1 deletions
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20
intern/ghost/intern/GHOST_SystemWin32.cpp
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@ -47,6 +47,7 @@
#include <shlobj.h>
#include <tlhelp32.h>
#include <Psapi.h>
#include <windowsx.h>
#include "utfconv.h"
@ -1056,6 +1057,7 @@ LRESULT WINAPI GHOST_SystemWin32::s_wndProc(HWND hwnd, UINT msg, WPARAM wParam,
event = processCursorEvent(GHOST_kEventCursorMove, window);
break;
case WM_MOUSEWHEEL:
{
/* The WM_MOUSEWHEEL message is sent to the focus window
* when the mouse wheel is rotated. The DefWindowProc
* function propagates the message to the window's parent.
@ -1063,12 +1065,28 @@ LRESULT WINAPI GHOST_SystemWin32::s_wndProc(HWND hwnd, UINT msg, WPARAM wParam,
* since DefWindowProc propagates it up the parent chain
* until it finds a window that processes it.
*/
event = processWheelEvent(window, wParam, lParam);
/* Get the winow under the mouse and send event to it's queue. */
POINT mouse_pos = {GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam)};
HWND mouse_hwnd = WindowFromPoint(mouse_pos);
GHOST_WindowWin32 *mouse_window = (GHOST_WindowWin32 *)::GetWindowLongPtr(mouse_hwnd, GWLP_USERDATA);
if (mouse_window != NULL) {
event = processWheelEvent(mouse_window, wParam, lParam);
}
else {
/* If it happened so window under the mouse is not found (which i'm not
* really sure might happen), then we add event to the focused window
* in order to avoid some possible negative side effects.
* - sergey -
*/
event = processWheelEvent(window, wParam, lParam);
}
#ifdef BROKEN_PEEK_TOUCHPAD
PostMessage(hwnd, WM_USER, 0, 0);
#endif
break;
}
case WM_SETCURSOR:
/* The WM_SETCURSOR message is sent to a window if the mouse causes the cursor
* to move within a window and mouse input is not captured.